package com.whucs.eduservice.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.whucs.commonutils.R;
import com.whucs.eduservice.entity.EduTeacher;
import com.whucs.eduservice.entity.vo.TeacherQuery;
import com.whucs.eduservice.service.EduTeacherService;
import com.whucs.servicebase.exceptionhandler.LuojiaException;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.Authorization;
import io.swagger.models.auth.In;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigurationPackage;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2022-04-01
 */
@Api(description="讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
@CrossOrigin
public class EduTeacherController {
    //http://localhost:8001/eduservice/edu-teacher/findAll

    //注入
    @Autowired
    private EduTeacherService teacherService;

    //1查询讲师表所有数据
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        //调用service 的方法实现查询所有的操作
//        List<EduTeacher> list = teacherService.list(null);
//        return list;
        List<EduTeacher> list = teacherService.list(null);
        return R.ok().data("items", list);
    }

    @ApiOperation(value = "根据ID删除讲师")
    @DeleteMapping("{id}")
    public R removeById(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id){
        boolean flag=teacherService.removeById(id);
        return flag?R.ok():R.error();
    }

    //3.分页查询讲师的方法
    //current代表当前页，limit代表每页记录数
    @ApiOperation(value = "分页讲师列表")
    @GetMapping("pageTeacher/{page}/{limit}")
    public R pageListTeacher(
            @ApiParam(name = "page", value = "当前页码", required = true)
            @PathVariable Long page,
            @ApiParam(name = "limit", value = "每页记录数", required = true)
            @PathVariable Long limit){
        //创建page对象
        Page<EduTeacher> pageParam = new Page<>(page, limit);
        //调用方法实现分页，把分页所有数据封装到pageTeacher对象中
        teacherService.page(pageParam, null);

        List<EduTeacher> records = pageParam.getRecords();
        long total = pageParam.getTotal();
        return R.ok().data("total", total).data("rows", records);
    }

    //4、条件查询带分页方法
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,
                                 @RequestBody(required = false) TeacherQuery teacherQuery){
        Page<EduTeacher> pageTeacher=new Page<>(current,limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper=new QueryWrapper<>();
        //多条件组合查询
        String name=teacherQuery.getName();
        Integer level=teacherQuery.getLevel();
        String begin=teacherQuery.getBegin();
        String end=teacherQuery.getEnd();
        //判断条件是否为空，如果不为空就拼接条件
        if(!StringUtils.isEmpty(name)){
            wrapper.like("name",name);
        }if(!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }if(!StringUtils.isEmpty(begin)){
            wrapper.eq("gmt_create",begin);
        }if(!StringUtils.isEmpty(end)){
            wrapper.eq("gmt_create",end);
        }
        wrapper.orderByDesc("gmt_create");
        //调用方法实现条件查询分页
        teacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();

        return  R.ok().data("total",total).data("rows",records);
    }


    //添加讲师接口的方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        return save?R.ok():R.error();
    }

    //根据讲师id进行查询
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id ){
        EduTeacher eduTeacher = teacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    //讲师修改方法
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = teacherService.updateById(eduTeacher);
        return flag?R.ok():R.error();
    }


}

